Igbt Tests (480V) - Invertek Drives OPTIDRIVE E3 Service Manual

2016 SERVICE MANUAL

IGBT tests (480V)

Remove cover off drive per the Mechanical Service Manual
In order to carry out the next set of tests the multimeter leads must be placed on the +/- DC
Bus in the following steps. (Ensure Multimeter is set to read/test diode)
ODE-3 FRAME SIZE 3
Rectifier check (L1, L2 & L3)
Using a multimeter set to read diode
1) Black lead on the - DC Bus and measure with the
red lead on L1, L2 & L3 input phases, value should
read open circuit.
2) Black lead to +DC point and measure to L1, L2 &
L3. Values = 0.520V +/- 10%
3) Red lead on –DC and measure with the black lead
to L1, L2 & L3. Values = 0.520V +/- 10%
4) Red lead on +DC and measure with the black lead
to L1, L2 & L3. Value = open circuit.
Output check (U, V & W)
Using a multimeter set to read diode,
1) Black lead on the - DC Bus and measure with the
red lead on U, V & W input phases, value should
read open circuit.
2) Black lead on the +DC point and measure to U, V
& W, values = 0.429V +/- 10%
3) Red lead on –DC and measure with the black
lead to L1 U, V & W values = 0.429V +/- 10%
4) Red lead on +DC and measure with the black
lead to U, V & W value should read open circuit.
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complete the following tests:
complete the following tests: